JPS6086595A - El panel driver - Google Patents
El panel driverInfo
- Publication number
- JPS6086595A JPS6086595A JP19581283A JP19581283A JPS6086595A JP S6086595 A JPS6086595 A JP S6086595A JP 19581283 A JP19581283 A JP 19581283A JP 19581283 A JP19581283 A JP 19581283A JP S6086595 A JPS6086595 A JP S6086595A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- drive circuit
- scanning
- refresh
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
技術分野
この発明はマトリクス形ＫＬパネルの［動装ｆｔ１２
。[Detailed Description of the Invention] Technical Field This invention relates to a matrix type KL panel [Motion ft12].
.
特に高速走査性と低電力消費に好適するＩＣＬパネルの
駆動方式に関する。In particular, the present invention relates to an ICL panel driving method suitable for high-speed scanning and low power consumption.
背景技術
走査ラインとデータラインの交点にマトリクス配置した
ＥＬ素子全点灯はせる場合、例えば、特開昭５４−１１
０２８９８号及び特開昭５４−１３０８９８号公報に示
されるような予備充電を経て駆動する方式が知られてい
るが、このようなプリチャージ式線順次駆動では消費電
力面と高速走査面で致命的欠陥となり、当該分野の重要
課題ときれていた。Background Art When all EL elements arranged in a matrix at the intersections of scanning lines and data lines are turned on, for example, Japanese Patent Laid-Open No. 54-11
02898 and Japanese Unexamined Patent Publication No. 54-130898 are known methods of driving after precharging, but such precharging line sequential driving is fatal in terms of power consumption and high-speed scanning. This resulted in flaws and was considered an important issue in the field.
そして、予備充電全除去するダイレクト式線順次駆動方
式によって高速走査性と低電力消費性のマトリクス形Ｋ
Ｌパネルの駆動装置の開発が望まれていた。The matrix type K achieves high-speed scanning and low power consumption thanks to the direct line-sequential drive method that completely eliminates pre-charging.
There was a desire to develop a driving device for the L panel.
発明の開示
従って、本発明に上記に鑑み提案はれたものであり、高
速走査性と低電力消費性と全備えた新規且つ改良された
マ） ＩＪクス形ＫＬパネルの駆動装置の提供を目的と
する。DISCLOSURE OF THE INVENTION Accordingly, the present invention has been proposed in view of the above, and an object of the present invention is to provide a new and improved machine for driving an IJ type KL panel that is fully equipped with high-speed scanning performance and low power consumption. shall be.
本発明によれば、走査ラインとデータラインの交点に接
続したＫＬ素子、この素子の走査側電極に発光所要の第
１の電圧全順次印加走査する走査駆動回路、この素子の
データ側電極に非発光状態の第２の電圧？印加し、この
第２の電圧全選択されたｗＬ素子に関し発光状態？得る
第３の電圧に可変させるデータ駆動回路、及び一フレー
ムを一走査後にデータ側電極にリフレッシュ電圧全印加
するリフレッシュ駆動回路から構成されたマトリクス形
ＫＬパネル駆動装置が開示される。この駆動装置は走査
及びデータ駆動回路がそれぞれブツシュ・プルドライバ
回路から成、す、走査駆動回路上一本の走査ライン全上
記第１の電圧で走査する際にその前後の走査ライン全そ
れぞれフローティング状態あるいは接地状態に維持する
ように動作はせる。その結果、走査中の水平ブランキン
グ期間が短縮されフレーム周波数を高く設定でき高速走
査性が発揮される。ｔな、走査期間中には特定の走査ラ
イン選択後に全パネルの電荷全放電はせずフローティン
グ状態全維持するのでそれによる消費電力の軽減全図る
ことができ、特に一フレームにおいてデータが変化しな
い場合には、顕著に表われる。According to the present invention, a KL element connected to the intersection of a scan line and a data line, a scan drive circuit that sequentially applies a first voltage required for light emission to the scan side electrode of this element, and a non-KL element connected to the data side electrode of this element. Second voltage in light emitting state? Applying this second voltage causes all selected wL elements to be in a light emitting state? A matrix-type KL panel driving device is disclosed, which is comprised of a data driving circuit that varies the voltage to a third voltage obtained, and a refresh driving circuit that applies the full refresh voltage to the data-side electrode after one frame is scanned. In this driving device, the scanning and data driving circuits each consist of a bush-pull driver circuit, and when all one scanning line on the scanning driving circuit is scanned with the above-mentioned first voltage, all the scanning lines before and after it are each in a floating state. Or operate to maintain it in a grounded state. As a result, the horizontal blanking period during scanning is shortened, the frame frequency can be set high, and high-speed scanning performance is achieved. During the scanning period, after selecting a specific scanning line, the charges of all panels are not fully discharged and are maintained in a floating state, which can reduce power consumption, especially when data does not change in one frame. It is noticeable.
発明全実施するための最良の形態
第１図は本発明に係るＫＬパネル駆動装置の回路構成図
であり、走査ライン（Ｓｌ）〜（Ｓｎ）とデータライン
（（ｉｔ） −（ａｍ）の各交点にＫＬ素子１１’Ｌｎ
）〜（ＥＬｎ＋ｎ）全接続してマトリクス形ＫＬパネル
が形成される。BEST MODE FOR CARRYING OUT THE INVENTION FIG. 1 is a circuit diagram of a KL panel driving device according to the present invention, in which each of scanning lines (Sl) to (Sn) and data lines ((it) - (am) KL element 11'Ln at the intersection
) to (ELn+n) are all connected to form a matrix type KL panel.
走査ライン（Ｓ＋）〜（８７１）の一端はブツシュスイ
ッチ素子（ＳＰＹ） 〜（ＳＰ？ｌ ）とプルスイッチ
素子（ＳＮ＋）−（ＳＮｎ）全含ムプッシュ・プルドラ
イバから成る走査駆動回路（１］）が結合され、ＥＬ素
子（ＥＬ＋＋ ） −（ｖｒ、ｒｎｎ ）の発光所要レ
ベル（２ｏｏｖ）の第１の電圧ｖ１が供給される。一方
、データライン（ｄｌ）〜（ｄｒｒｌ）の一端はブツシ
ュスイッチ素子（ＤＰＩ ）〜（ＤＰＩＴｌ）、ダイオ
ード（Ｄｄ＋）〜（′Ｄｄｍ）及びプルスイッチ素子（
ＤＮ＋） −（ＤＮｍ） ′？を含むブツシュ・プルド
ライバから成るデータ駆動回路（ｌ→が結合される。更
に、逆流阻止用ダイオード（Ｄｒ＋Ｉ〜（Ｄｒｍ）及び
スイッチング素子Ｔｒ全含ｂリフレッシュ駆動回路Ｃ→
がデータ駆動回路（１つと並列に接続はれる。ここで、
データ駆動回路（ｌ乃には非発光時のデータライン電圧
（、／６０Ｖ）の第２の電圧ｖ２が供給されており、リ
フレッシュ駆動回路（３）にはリフレッシュ電圧ｖＲが
第１の電圧と同レベル（ｇｏｏｖ）で供給源れている。One end of the scan lines (S+) to (871) is a scan drive circuit (1) consisting of a push-pull driver including bush switch elements (SPY) to (SP?l) and pull switch elements (SN+) to (SNn). ) are coupled, and a first voltage v1 of the required light emission level (2oov) of the EL element (EL++) - (vr, rnn) is supplied. On the other hand, one end of the data lines (dl) to (drrl) is connected to bush switch elements (DPI) to (DPITl), diodes (Dd+) to ('Ddm), and pull switch elements (
DN+) −(DNm)′? A data drive circuit consisting of a bush-pull driver including (l→) is coupled.Furthermore, a refresh drive circuit (C→) including backflow blocking diodes (Dr+I~(Drm) and switching elements Tr)
is connected in parallel with the data drive circuit (one). Here,
The second voltage v2 of the data line voltage (, /60V) during non-emission is supplied to the data drive circuit (1), and the refresh voltage vR is the same as the first voltage to the refresh drive circuit (3). The supply source is level (goov).
上記構成のＥＬパネル駆動装置の動作全第３図のタイム
チャート全参照して説明する。先ず、走査駆動回路Ｃり
は各走査ライン（Ｓｌ）〜（Ｓｎ）毎にブツシュ・プル
ドライバであるＮＥＴスイッチ素子（ＳＰ＋ ）〜（Ｓ
Ｐｎ）及び（ＳＮ＋） 〜（ｓＮｎ）が接Ｍ［ｊね、ブ
ツシュドライバのゲート信号に応じて電源の第１の６ｆ
ｆｉ圧ｖ１が印加される。この電圧■１はＫＬ素子（Ｆ
＝Ｌ１１）〜（ＥＬｍｎ）全発光させるに充分に高い発
光所要電圧２００ｖが選定されている。ｆな、プルドラ
イバはＫＬ素子に充電した電荷全放電はせるｆ！ｈき全
する。The entire operation of the EL panel driving device having the above configuration will be explained with reference to the time chart shown in FIG. First, the scan drive circuit C connects NET switch elements (SP+) to (Sn), which are bush pull drivers, for each scan line (Sl) to (Sn).
Pn) and (SN+) ~ (sNn) are connected to M[j, the first 6f of the power supply according to the gate signal of the bush driver.
fi pressure v1 is applied. This voltage ■1 is the KL element (F
=L11) to (ELmn) A voltage required for light emission of 200 V is selected, which is sufficiently high to cause full light emission. The pull driver completely discharges the charge charged in the KL element. h completely.
このようにして第３図に示すような第１の電圧Ｖ１によ
る走査−が行なわれる。一方、データ駆動回路（噂は各
データライン（ｄｌ）〜（ｄｉ ）毎に走査側と同様に
ブツシュ・プルドライバが接続されブツシュドライバに
よって電源の第２の電圧ｖ２が各スイッチ素子のゲート
信号に応じ印加される。この第２の電圧ｖ２は非選択電
圧６０Ｖであり、この電圧がＫＬ素子のデータ側電極に
印加されるとき、たとえ走査側電極に発光所要の第１の
電圧ｖ１が印加されても、ＫＬ素子の端子間には２００
６０−１４０Ｖ ノＴＩ。In this manner, scanning with the first voltage V1 as shown in FIG. 3 is performed. On the other hand, the data drive circuit (rumor has it that a bush pull driver is connected to each data line (dl) to (di) in the same way as on the scanning side, and the bush driver applies the second voltage v2 of the power supply to the gate signal of each switch element. This second voltage v2 is a non-selection voltage of 60 V, and when this voltage is applied to the data side electrode of the KL element, even if the first voltage v1 required for light emission is applied to the scanning side electrode. Even if the terminals of the KL element are
60-140V NOTI.
圧しか印加されないためＫＬ素子は発光しない。Since only pressure is applied, the KL element does not emit light.
また、選択されたＫＬ素子全発光させるにはプルドライ
バによりこの第２の電Ｆｆ−Ｖ２−にこれより低い第３
の電圧ｖ３に丁べく制御信号全供給する。すなわち、非
選択状態？維持する第２の電圧ｖ２を選択状態に変えて
第３の電圧、例えば接地状態のＯｖにするとき、ＥＬ素
子（ＥＬｎ） −（ＴＣＬｒｎｎ ）の４発光しきい値
以上の電圧（＝Ｖ＋ Ｖｏ）が両電極に印加され選択さ
れたＥＬ素子が発光する。従ってデータラインは走査タ
イミングに応じて選択又は非選択のデータ信号全供給す
る。In addition, in order to cause the selected KL element to fully emit light, a pull driver is used to set this second voltage Ff-V2- to a lower third voltage.
All control signals are supplied to the voltage v3. In other words, a non-selected state? When changing the second voltage v2 to be maintained to a selected state and setting it to a third voltage, for example, Ov in a grounded state, a voltage (=V+Vo) equal to or higher than the 4 emission threshold of the EL element (ELn) - (TCLrnn) is applied to both electrodes, and the selected EL element emits light. Therefore, the data line supplies all selected or non-selected data signals depending on the scanning timing.
上述の走査及びデータ駆動回路（ｎ） （１２）によリ
ーアレーン、全走査し画像形成する走査期間後、全ての
ＫＬ素子（ＥＬ＋ ＋ ）−（ＥＬｍｎ ）はリフレッ
シュして励起しなければならない。この過程は前述の走
査期間の印加電圧と逆極性の電圧全ＥＬ素子の両電極間
に印加して行なわれるが、これ全リフレッシュ駆動回路
（喝で達成させる。すなわち、スイッチング素子Ｔｒと
各データラインのダイオード（Ｄｒ＋ ）〜（］）ｒｍ
）′ｊｋ経てリフレッシュ電圧ＶＲをデータ側電極ニ印
加して行なう。リフレツンユ電ＩＴＥＶＲｆｄ、例えば
第１の電圧と同レベルの？４１１２００Ｖが使用される
。第３図は走査期間Ｔ。とりフレーム期間Ｔ３を含むフ
レーム期間を示しており、走査期間には各走査ライン（
Ｓｌ）〜（Ｓｌ）に対しそれぞれ走査電圧印加期間Ｔ１
と水平ブランキング期間が含まねる。After the scanning period in which the above-mentioned scanning and data driving circuit (n) (12) performs a full scan and forms an image, all the KL elements (EL+ + )-(ELmn) must be refreshed and excited. This process is carried out by applying a voltage with the opposite polarity to the voltage applied during the scanning period between the electrodes of all EL elements, and this is accomplished by a full refresh drive circuit (i.e., between the switching element Tr and each data line). Diode (Dr+) ~ (])rm
)'jk, the refresh voltage VR is applied to the data side electrode. Is the reflex electricity ITEVRfd, for example, the same level as the first voltage? 411200V is used. FIG. 3 shows the scanning period T. It shows the frame period including the frame period T3, and the scanning period includes each scanning line (
Scan voltage application period T1 for each of (Sl) to (Sl)
and horizontal blanking period.
本発明の別の観点において、走査駆動回路ＣＩ）は各走
査ライン（Ｓ＋ ）〜（８７１）に対しそれぞれ接地電
位状態（Ｏｖ）、発光所要電圧（第１の電圧）走査状態
及びフローティングのハイインピーダンス状態の三つの
状態に切換え駆動される。このような駆動方式は走査駆
動回路ｆ＋）全第１図のように、ブツシュ・プルドライ
バで構成することで可能であり、それにより高速走査と
低電力消費性より向上はせることができる。In another aspect of the present invention, the scan drive circuit CI) has a ground potential state (Ov), a light emission required voltage (first voltage) scan state, and a floating high impedance state for each scan line (S+) to (871). It is driven to switch between three states. Such a driving system can be achieved by constructing the scan driving circuit (f+) with a bush-pull driver as shown in FIG. 1, thereby improving high-speed scanning and low power consumption.
第２図は上述する走査駆動回路全三種類切換で動作する
要部回路構成図であり、各駆動回路（ＩＩ）〜（喝のス
イッチング素子全簡略化して示している。FIG. 2 is a circuit configuration diagram of the essential parts of the above-mentioned scanning drive circuit which operates by switching between all three types, and all the switching elements of each drive circuit (II) to (1) are shown in a simplified manner.
ここで走査駆動回路０１）は、ある走査ライン全ブツシ
ュドライバによって第１ Ｆｌ ｔａ圧ｖ１にしこの走
査ラインのＥＬ素子を充１１ｔした後、プルドライバで
放ｉ！すせ、この時に次の走査ラインに移る。ただし、
このとき、その他の走査ラインはフローティング（へイ
インピーダンス状態）にする。第２図では、第２走査ラ
インが第１の電圧ｖ１になった状態を示している。これ
を、タイムチャートで見ると第４図のようにデータライ
ンにセットした徒弟２の走査ライン（＄２）に第１の電
圧Ｖ＋’５ｔ：印加して走査イるときに第１の走査ライ
ン（Ｓ、）はＯｖにし電荷全放電させ、第３の走査ライ
ン（Ｓ３）以降はフローティング状態（）１イインピー
ダンス）にされ、第１の電圧（２００Ｖｌ以下であって
データラインのスイッチングに応じた電圧を維持する。Here, the scan drive circuit 01) charges the EL elements of this scan line to the first Fl ta pressure v1 by using the bush driver for all the scan lines, and then discharges it by the pull driver! At this time, the next scanning line is started. however,
At this time, the other scanning lines are made floating (high impedance state). FIG. 2 shows a state in which the second scanning line is at the first voltage v1. Looking at this on a time chart, as shown in Figure 4, when the first voltage V+'5t: is applied to the scanning line ($2) of apprentice 2 set as the data line and scanning begins, the first scanning line (S,) is set to Ov and the charge is fully discharged, and from the third scanning line (S3) onwards, it is in a floating state ()1 impedance), and the first voltage (200 Vl or less and according to the switching of the data line) is set. Maintain voltage.
このような駆動方式では、ある走査ラインの選択から次
の走査ラインの選択までの各動作、丁なわち第４図に示
すように走査ライン電圧ＯＶ点（→−データ書き換え点
ｔｙ＋−次のライン選択点（ｚｌのタイミングのずれが
、各動作の安定化まででよいから、第３図に示す水平ブ
ランキング期間Ｔ２全格段に短縮可能にする。従って、
水平ブランキング期間全知かくすることで高速走査が実
現できフレーム周波数全向上できる。In such a driving method, each operation from the selection of a certain scanning line to the selection of the next scanning line, that is, as shown in FIG. Since the timing shift of the selection point (zl) is sufficient to stabilize each operation, the entire horizontal blanking period T2 shown in FIG. 3 can be significantly shortened.
By keeping the entire horizontal blanking period hidden, high-speed scanning can be realized and the frame frequency can be completely increased.
加えて、選択走査ラインと、その直後の走ｈライン以外
は、７０−ティング状態で矛）るため、消費電力でか方
−りの節減が図られる。特に、−フレームの間、データ
ラインのデータが変化しない場合には一走査選択後、Ｆ
Ｆとんど選択された走査ラインの電荷だけが放電され、
それ以外のＥＬ素子に充電されている電荷は放電されな
いため、ａｔ消費電力はさらに顕著に表われる。これは
一つの走査ライン選択終了ごとに全パネルの電荷を放？
ｌｉさせる駆動方式に比べて低電力消費性に優ることは
明らかである。In addition, since the scanning line other than the selected scanning line and the immediately following scanning line are in the 70-bit state, a considerable reduction in power consumption is achieved. In particular, if the data on the data line does not change during -frame, after selecting one scan, F
F Only the charges of the selected scan line are discharged,
Since the charges stored in other EL elements are not discharged, the AT power consumption becomes even more noticeable. Does this release the charge on the entire panel every time one scan line is selected?
It is clear that this method is superior in low power consumption compared to the li drive method.
第１図は本発明に係るＫＬパネル駆動装贋の回路図、第
２図は第１図の動作時のタイミング特性図、第３図は第
１図の駆動装置による駆動方式全説明する要部回路図、
及び第４図はａ−２図の回路図における走査期間のタイ
ミング特性図である。
（１つ・・・・・走査駆動回路
Ｃ４・・・・・・データ駆動回路Fig. 1 is a circuit diagram of the KL panel drive device according to the present invention, Fig. 2 is a timing characteristic diagram during operation of Fig. 1, and Fig. 3 is a main part explaining the entire driving method by the drive device of Fig. 1. circuit diagram,
and FIG. 4 is a timing characteristic diagram of the scanning period in the circuit diagram of FIG. a-2. (One...scan drive circuit C4...data drive circuit
Claims (1)
。 素子、このＫＩ＋素子の走査側１！極に第１の電圧全順
次印加しつつ走査する走査駆動回路、前記ＫＬ素子のデ
ータ側電極に第２の電圧を印加しこの電圧を選択発光さ
せるＩＣＵ、素子に関し第３の電圧に苛変させるデータ
駆動回路、及び前記走査駆動回路ｊｃよるフレーム走査
後、前記データ側電極にり７レツシユ電圧を印加するリ
フレッシュ駆動回路を具備して成り、前記ＥＬ素子の発
光しきい値に対して、前記第１ｆ）電圧と前記第２の電
圧との差全小さな値に、且つ前記第１ｆ）ｉ圧と前記第
３の電圧との差全大きな値に設定し所望する位置のＫＬ
素子全点滅させることを特徴とするマトリクス形ΣＬパ
ネル駆動装置。 ２）前記走査駆動回路及び前記データ駆動回路がブツシ
ュ プルドラ、イバを具備し、前記走査駆動回路で特定
の走査ライン全前記第１の電圧で走査するとき、走査直
後に零電位とし且つ走査前全７０−ティング状態に維持
すること全！％徴とする特許請求の範囲第１項に記載の
ＫＬパネル駆動装置。 ３）前記リフレッシュ駆動回路は前記走査側１極全第３
の電圧に変え且つ前記データ側電極に第１の電圧全印加
してリフレッシュすると共に前記第１の電圧全発光所要
電圧に且つ前記第３の電圧全接地電位にそれぞれ選定し
た特許請求の範囲第１項に記載のＫＬパネル駆動装置。[Claims] l) ICI connected to the intersection of the scan line and the data line
. element, scanning side 1 of this KI+element! A scan drive circuit that scans while sequentially applying a first voltage to the electrodes, an ICU that applies a second voltage to the data side electrode of the KL element and causes this voltage to selectively emit light, and a third voltage applied to the element. The refresh drive circuit includes a data drive circuit and a refresh drive circuit that applies a seven-refresh voltage to the data side electrode after frame scanning by the scan drive circuit jc, and the refresh drive circuit applies a seven-refresh voltage to the data side electrode, and 1f) The difference between the voltage and the second voltage is set to a small value, and the difference between the 1f) i pressure and the third voltage is set to a large value, and the KL at the desired position is set.
A matrix type ΣL panel drive device characterized by causing all elements to blink. 2) The scan drive circuit and the data drive circuit are equipped with a push-pull driver and a driver, and when the scan drive circuit scans all specific scan lines with the first voltage, the voltage is set to zero immediately after scanning, and the entire voltage is set to zero before scanning. All you have to do is keep it at 70-tings! The KL panel drive device according to claim 1, wherein the KL panel drive device is expressed as a percentage. 3) The refresh drive circuit has one pole and all third poles on the scanning side.
and apply a full first voltage to the data side electrode to refresh, and select the first voltage to be the full light emission required voltage and the third voltage to be the full ground potential, respectively. The KL panel drive device described in .
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58195812A JPH0650428B2 (en) | 1983-10-18 | 1983-10-18 | EL panel drive |
| US06/625,905 US4652872A (en) | 1983-07-07 | 1984-06-28 | Matrix display panel driving system |
| CA000458099A CA1234645A (en) | 1983-07-07 | 1984-07-04 | Matrix display panel driving system |
| KR1019840003929A KR890002006B1 (en) | 1983-07-07 | 1984-07-06 | Driving method of matrix type display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58195812A JPH0650428B2 (en) | 1983-10-18 | 1983-10-18 | EL panel drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6086595A true JPS6086595A (en) | 1985-05-16 |
| JPH0650428B2 JPH0650428B2 (en) | 1994-06-29 |
Family
ID=16347393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58195812A Expired - Lifetime JPH0650428B2 (en) | 1983-07-07 | 1983-10-18 | EL panel drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650428B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329798A (en) * | 1986-07-22 | 1988-02-08 | シャープ株式会社 | Drive circuit for thin film el display device |
| JPS6334592A (en) * | 1986-07-29 | 1988-02-15 | シャープ株式会社 | Drive circuit for thin film el display device |
| JPS6440989A (en) * | 1987-08-07 | 1989-02-13 | Sharp Kk | Driving circuit for thin film el display device |
| JP2003066907A (en) * | 2001-08-30 | 2003-03-05 | Oki Electric Ind Co Ltd | Display device, driving method and driving circuit therefor |
| GB2392738A (en) * | 2002-06-05 | 2004-03-10 | Kobe Steel Ltd | A method of controlling a motor cooling fan for a screw compressor |
| JP2004272213A (en) * | 2003-02-17 | 2004-09-30 | Hitachi Ltd | Image display device |
| JP2010508540A (en) * | 2006-10-30 | 2010-03-18 | コミツサリア タ レネルジー アトミーク | Method for driving a matrix display device having an electron source with low capacity consumption |
| JP2010224543A (en) * | 2003-02-17 | 2010-10-07 | Hitachi Ltd | Image display apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437691A (en) * | 1977-08-30 | 1979-03-20 | Sharp Corp | Driving unit for thin film el display unit |
-
1983
- 1983-10-18 JP JP58195812A patent/JPH0650428B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437691A (en) * | 1977-08-30 | 1979-03-20 | Sharp Corp | Driving unit for thin film el display unit |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329798A (en) * | 1986-07-22 | 1988-02-08 | シャープ株式会社 | Drive circuit for thin film el display device |
| JPH0654414B2 (en) * | 1986-07-22 | 1994-07-20 | シャープ株式会社 | Driving circuit for thin film EL display device |
| JPS6334592A (en) * | 1986-07-29 | 1988-02-15 | シャープ株式会社 | Drive circuit for thin film el display device |
| JPH0654415B2 (en) * | 1986-07-29 | 1994-07-20 | シャープ株式会社 | Driving circuit for thin film EL display device |
| JPS6440989A (en) * | 1987-08-07 | 1989-02-13 | Sharp Kk | Driving circuit for thin film el display device |
| JP2003066907A (en) * | 2001-08-30 | 2003-03-05 | Oki Electric Ind Co Ltd | Display device, driving method and driving circuit therefor |
| GB2392738A (en) * | 2002-06-05 | 2004-03-10 | Kobe Steel Ltd | A method of controlling a motor cooling fan for a screw compressor |
| GB2392738B (en) * | 2002-06-05 | 2005-01-12 | Kobe Steel Ltd | Screw compressor |
| JP2004272213A (en) * | 2003-02-17 | 2004-09-30 | Hitachi Ltd | Image display device |
| JP2010224543A (en) * | 2003-02-17 | 2010-10-07 | Hitachi Ltd | Image display apparatus |
| JP2010508540A (en) * | 2006-10-30 | 2010-03-18 | コミツサリア タ レネルジー アトミーク | Method for driving a matrix display device having an electron source with low capacity consumption |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0650428B2 (en) | 1994-06-29 |
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